{"id":13156,"date":"2024-12-13T20:27:12","date_gmt":"2024-12-13T18:27:12","guid":{"rendered":"https:\/\/nhkmachineryparts.com\/?p=13156"},"modified":"2025-10-17T20:19:25","modified_gmt":"2025-10-17T18:19:25","slug":"%e3%83%99%e3%82%a2%e3%83%aa%e3%83%b3%e3%82%b0%e3%83%a6%e3%83%8b%e3%83%83%e3%83%88%e3%82%a8%e3%83%b3%e3%82%b8%e3%83%8b%e3%82%a2%e3%83%aa%e3%83%b3%e3%82%b0420%e3%81%a8440%e3%82%b9%e3%83%86%e3%83%b3","status":"publish","type":"post","link":"https:\/\/nhkmachineryparts.com\/jp\/bearing-unit-engineering-the-role-of-420-vs-440-stainless-steel\/","title":{"rendered":"\u30d9\u30a2\u30ea\u30f3\u30b0\u30e6\u30cb\u30c3\u30c8\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0: 420 \u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u3068 440 \u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306e\u5f79\u5272"},"content":{"rendered":"<p><style>@media (min-width: 992px) { .liquid-row-responsive-69d49e798092c {padding-top:50px !important; padding-bottom:88px !important;  }  }    <\/style><section data-bg-image=\"url\" class=\"vc_row vc_custom_1712042566150 liquid-row-responsive-69d49e798092c liquid-row-shadowbox-69d49e7980940 vc_row-has-fill vc_row-has-bg\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><div class=\"wpb_column vc_column_container vc_col-sm-12 liquid-column-69d49e7980aa4\"><div class=\"vc_column-inner  \" ><div class=\"wpb_wrapper\"  ><div class=\"vc_row vc_inner vc_row-fluid liquid-row-shadowbox-69d49e7980b87\"><div class=\"ld-container container-fluid\"><div class=\"row ld-row ld-row-inner vc_row-o-content-middle vc_row-flex\"><style>@media (min-width: 992px) { .liquid-column-responsive-69d49e7980c9a > .vc_column-inner {padding-right:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d49e7980c9a > .vc_column-inner {padding-right:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-8 vc_col-md-8 vc_col-xs-12 liquid-column-69d49e7980c99 liquid-column-responsive-69d49e7980c9a\"><div class=\"vc_column-inner \" ><div class=\"wpb_wrapper\" >\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 data-pm-slice=\"1 1 &#091;&#093;\">Bearing Unit Engineering and Development: Understanding 420 vs 440 Stainless Steel, Including Different Sub-Grades<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>In the world of modern machinery, the selection of materials can make a profound difference in performance, durability, and maintenance costs. Bearing units, a critical component in manufacturing, food processing, pharmaceutical, and heavy-duty machinery, demand materials that can withstand harsh conditions. Two of the most popular materials for bearing units are 420 and 440 stainless steel. Both are renowned for their corrosion resistance, strength, and hardness, but their specific properties and applications differ significantly. This article delves into the engineering and development considerations when choosing between 420 and 440 stainless steel bearing units, along with an in-depth review of their sub-grades.<\/p>\n<h2><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/h2>\n<h2><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-4 vc_col-md-4 vc_col-xs-12 liquid-column-69d49e7980e52\"><div class=\"vc_column-inner \" ><div class=\"wpb_wrapper\" ><style>.ld_button_69d49e7980f12.btn-icon-solid .btn-icon{background:rgba(255, 255, 255, 0);}.ld_button_69d49e7980f12.btn-icon-circle.btn-icon-ripple .btn-icon:before{border-color:rgba(255, 255, 255, 0);}.ld_button_69d49e7980f12.btn-icon-solid:hover .btn-icon{background:rgba(255, 255, 255, 0);}.ld_button_69d49e7980f12{color:rgb(34, 34, 34);border-color:rgba(255, 255, 255, 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value=\"Send message\" \/>\n<\/p><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div>\n\t\t<\/div><!-- \/.lqd-modal-content -->\n\t\t<div class=\"lqd-modal-foot\"><\/div><!-- \/.lqd-modal-foot -->\n\n\t<\/div><!-- \/.lqd-modal-inner -->\n<\/div><!-- \/#modal-box.lqd-modal --><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section data-bg-image=\"url\" class=\"vc_row vc_custom_1711480886685 liquid-row-shadowbox-69d49e7982fbf vc_row-has-fill vc_row-has-bg\"><div class=\"ld-container container\"><div class=\"row ld-row ld-row-outer\"><style>@media (min-width: 992px) { .liquid-column-responsive-69d49e7983107 > .vc_column-inner {margin-bottom:0px !important; padding-right:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d49e7983107 > .vc_column-inner {padding-right:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-6 vc_col-md-8 vc_col-xs-12 liquid-column-69d49e7983106 liquid-column-responsive-69d49e7983107\"><div class=\"vc_column-inner  vc_custom_1711483264577\" ><div class=\"wpb_wrapper\"  >\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1736181810437\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 data-pm-slice=\"1 1 &#091;&#093;\"><strong>What is 420 Stainless Steel?<\/strong><\/h2>\n<p>420 stainless steel is a martensitic stainless steel known for its excellent corrosion resistance, toughness, and high polishability. It is commonly used in applications requiring moderate wear resistance and good corrosion protection.<\/p>\n<h3><strong>Key Properties of 420 Stainless Steel<\/strong><\/h3>\n<ul data-spread=\"false\">\n<li><strong>Corrosion Resistance:<\/strong> Excellent resistance to water, food acids, and mild chemicals.<\/li>\n<li><strong>Hardness:<\/strong> Achieves hardness up to 50 HRC after heat treatment.<\/li>\n<li><strong>Toughness:<\/strong> Good toughness, which reduces the risk of cracking under high loads.<\/li>\n<li><strong>Machinability:<\/strong> Easier to machine compared to 440 stainless steel.<\/li>\n<\/ul>\n<h3><strong>Applications of 420 Stainless Steel in Bearing Units<\/strong><\/h3>\n<p>420 stainless steel is widely used in bearing units for food processing, pharmaceutical, and chemical <a href=\"https:\/\/nhkmachineryparts.com\/jp\/our-industries\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Our industries\">industries<\/a> due to its hygienic properties and moderate corrosion resistance. These units are essential in clean environments where moisture and sanitizing chemicals are present. Its lower cost compared to 440 stainless steel makes it a more economical choice for applications with moderate performance demands.<\/p>\n<h3><strong>Common Sub-Grades of 420 Stainless Steel<\/strong><\/h3>\n<ul data-spread=\"false\">\n<li><strong>420J1:<\/strong> Offers basic corrosion resistance, suitable for light-duty applications.<\/li>\n<li><strong>420J2:<\/strong> Features enhanced hardness and corrosion resistance, making it more suitable for demanding applications.<\/li>\n<li><strong>420HC (High Carbon):<\/strong> Contains more carbon, increasing hardness and wear resistance. It is often used in precision instruments and food processing equipment.<\/li>\n<\/ul>\n<div>\n<hr \/>\n<\/div>\n<h2><strong>What is 440 Stainless Steel?<\/strong><\/h2>\n<p>440 stainless steel, also martensitic, is renowned for its superior hardness, wear resistance, and corrosion resistance. It\u2019s often used in environments where extreme durability is required.<\/p>\n<h3><strong>Key Properties of 440 Stainless Steel<\/strong><\/h3>\n<ul data-spread=\"false\">\n<li><strong>Corrosion Resistance:<\/strong> Superior to 420 stainless steel, especially in harsh, abrasive, and chemical-rich environments.<\/li>\n<li><strong>Hardness:<\/strong> Reaches a hardness of up to 60 HRC after heat treatment, significantly higher than 420.<\/li>\n<li><strong>Wear Resistance:<\/strong> Superior wear resistance, making it ideal for high-friction applications.<\/li>\n<li><strong>Strength:<\/strong> Offers exceptional tensile strength and compressive strength.<\/li>\n<\/ul>\n<h2><strong>Applications of 440 Stainless Steel in Bearing Units<\/strong><\/h2>\n<p>The unique properties of 440 stainless steel make it the preferred choice for heavy-duty bearing units exposed to extreme conditions. It\u2019s used in pharmaceutical, food processing, and packaging environments where the bearing must endure heavy loads, impact, and exposure to corrosive agents like salts, detergents, and solvents. The hardness of 440 stainless steel allows for the production of high-precision components with long service life.<\/p>\n<h2><strong>Common Sub-Grades of 440 Stainless Steel<\/strong><\/h2>\n<ul data-spread=\"false\">\n<li><strong>440A:<\/strong> The most corrosion-resistant of the 440 series. It\u2019s widely used in food processing, beverage filling lines, and chemical processing.<\/li>\n<li><strong>440B:<\/strong> Offers increased hardness and moderate corrosion resistance. It is used in machine parts where strength and wear resistance are critical.<\/li>\n<li><strong>440C:<\/strong> The most well-known grade, with the highest carbon content, offering superior hardness, wear resistance, and corrosion resistance. 440C is often used in critical precision instruments and bearing units exposed to highly abrasive or corrosive conditions.<\/li>\n<li><strong>440F:<\/strong> A free-machining version of 440C, often used for components requiring high precision machining with reduced production time.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalog\/\">Get our catalogue here<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/\">See our product line here<\/a><\/p>\n<hr \/>\n<h2><strong>Key Differences Between 420 and 440 Stainless Steel for Bearing Units<\/strong><\/h2>\n<p>When choosing between 420 and 440 stainless steel for bearing units, several key differences must be considered:<\/p>\n<table>\n<tbody>\n<tr>\n<th><strong>Property<\/strong><\/th>\n<th><strong>420 Stainless Steel<\/strong><\/th>\n<th><strong>440 Stainless Steel<\/strong><\/th>\n<\/tr>\n<tr>\n<td><strong>Corrosion Resistance<\/strong><\/td>\n<td>Moderate resistance to water, food acids, and mild chemicals<\/td>\n<td>Superior resistance to harsh chemicals, detergents, and salts<\/td>\n<\/tr>\n<tr>\n<td><strong>Hardness (HRC)<\/strong><\/td>\n<td>Up to 50 HRC<\/td>\n<td>Up to 60 HRC<\/td>\n<\/tr>\n<tr>\n<td><strong>Wear Resistance<\/strong><\/td>\n<td>Moderate<\/td>\n<td>Superior<\/td>\n<\/tr>\n<tr>\n<td><strong>Machinability<\/strong><\/td>\n<td>Easier to machine<\/td>\n<td>Harder to machine due to higher hardness<\/td>\n<\/tr>\n<tr>\n<td><strong>Cost<\/strong><\/td>\n<td>Lower cost<\/td>\n<td>Higher cost due to enhanced properties<\/td>\n<\/tr>\n<tr>\n<td><strong>Applications<\/strong><\/td>\n<td>Food, pharma, moderate load<\/td>\n<td>Heavy-duty, high-impact, extreme environments<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Choosing between 420 and 440 stainless steel often comes down to the operating environment. For hygienic conditions, light loads, and lower costs, 420 is ideal. For high-impact, heavy-load, and extreme chemical exposure, 440 is the superior option.<\/p>\n<hr \/>\n<h2><strong>420 Stainless Steel vs. 440 Stainless Steel:\u00a0<\/strong><strong>Hardness and Wear Resistance<\/strong><\/h2>\n<ul>\n<li>\n<h3><strong>420 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Can be heat treated to achieve hardness between <strong>HRC 50-55<\/strong>. Its lower carbon content results in less hardness and wear resistance compared to 440C.<\/li>\n<li>Suitable for applications where toughness is more important than extreme hardness.<\/li>\n<\/ul>\n<\/li>\n<li>\n<h3><strong>440 Stainless Steel<\/strong>:<\/h3>\n<ul>\n<li>Can be heat treated to achieve much higher hardness, especially <strong>440C<\/strong>, which can reach up to <strong>HRC 58-60<\/strong>.<\/li>\n<li>440C, in particular, is favored for its extreme wear resistance, making it ideal for high-stress cutting applications such as knife blades and surgical instruments.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/sealed-stainless-bearing-units\/\">Sealed stainless steel 420 vs 440 bearing units<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/product-line\/mounted-ball-bearing-house-units\/\">Mounted stainless steel 420 vs 440 bearing units<\/a><\/p>\n<h2><strong>Engineering Considerations for Bearing Unit Development<\/strong><\/h2>\n<p>When designing and developing bearing units, the following factors influence the choice of 420 or 440 stainless steel:<\/p>\n<ol start=\"1\" data-spread=\"false\">\n<li><strong>Load and Stress Requirements:<\/strong> Higher loads and impact forces demand the superior hardness and strength of 440 stainless steel. For lighter loads, 420 may suffice.<\/li>\n<li><strong>Environmental Exposure:<\/strong> In highly corrosive environments (e.g., chemical processing), 440 is essential. In less aggressive environments (e.g., food processing with mild cleaning agents), 420 provides adequate protection.<\/li>\n<li><strong>Machinability and Cost:<\/strong> If machining is a priority, 420 stainless steel is easier and faster to machine, saving production costs. The superior hardness of 440 requires more advanced machining equipment and longer production time.<\/li>\n<li><strong>Regulatory Compliance:<\/strong> For food, pharmaceutical, and hygienic applications, both 420 and 440 stainless steels meet industry standards. However, 440\u2019s superior corrosion resistance provides a longer lifespan in environments requiring stringent cleaning protocols.<\/li>\n<\/ol>\n<div>\n<hr \/>\n<\/div>\n<h2><strong>Final Thoughts on 420 vs 440 Stainless Steel Bearing Units<\/strong><\/h2>\n<p>Both 420 and 440 stainless steels play critical roles in the design and development of high-performance bearing units. Each has distinct sub-grades that further expand their range of applications. While 420 stainless steel is economical and versatile, 440 stainless steel excels in extreme environments that demand maximum hardness, corrosion resistance, and wear resistance.<\/p>\n<p>When selecting bearing units for food processing, pharmaceutical, or heavy-duty industrial applications, it&#8217;s essential to weigh the demands of the operating environment against the material\u2019s cost, machinability, and performance. With this knowledge, equipment manufacturers and engineers can make informed decisions to enhance machine efficiency, reduce downtime, and maximize operational lifespan.<\/p>\n<h3><strong>Optimize your machinery\u2019s performance with the right bearing unit material. Whether it\u2019s 420 or 440 stainless steel, each grade offers distinct advantages to meet your specific needs.<\/strong><\/h3>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1729177119724\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2>Questions and contact<\/h2>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/contact\/\">Contact us for hygienic solution<\/a><\/p>\n<p><a href=\"https:\/\/nhkmachineryparts.com\/catalogue\/\" target=\"_blank\" rel=\"noopener\">Get our catalogue here<\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><style>@media (min-width: 992px) { .liquid-column-responsive-69d49e7983404 > .vc_column-inner {padding-left:2% !important;  }  } @media (min-width: 1200px) { .liquid-column-responsive-69d49e7983404 > .vc_column-inner {padding-left:4% !important;  }  } <\/style><div class=\"wpb_column vc_column_container vc_col-sm-12 vc_col-lg-6 vc_col-md-4 vc_col-xs-12 liquid-column-69d49e7983403 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status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/Advancing-Food-Safety-Through-Hygienic-Design-700x450.png\" class=\"w-100 wp-post-image\" alt=\"Advancing Food Safety Through Hygienic Design\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/Advancing-Food-Safety-Through-Hygienic-Design-700x450.png 700w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/Advancing-Food-Safety-Through-Hygienic-Design-18x12.png 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-07T07:33:32+02:00\">7. 4\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/advancing-food-safety-through-hygienic-design\/\" rel=\"bookmark\">Advancing Food Safety Through Hygienic Design<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/advancing-food-safety-through-hygienic-design\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39397\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39397 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/06\/3-A-SSI-Primarily-focused-on-North-America-including-the-United-States-and-Canada-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Primarily focused on North America, including the United States and Canada\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-07T07:20:56+02:00\">7. 4\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/everything-you-want-to-know-about-3-a-ssi\/\" rel=\"bookmark\">Everything You Want to Know About 3-A SSI<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/everything-you-want-to-know-about-3-a-ssi\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39362\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39362 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Sanitary-Design-in-Food-Processing-and-Pharmaceutical-Industries-700x450.png\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Sanitary Design in Food Processing and Pharmaceutical Industries\" srcset=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Sanitary-Design-in-Food-Processing-and-Pharmaceutical-Industries-700x450.png 700w, https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Sanitary-Design-in-Food-Processing-and-Pharmaceutical-Industries-18x12.png 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-05T16:53:32+02:00\">5. 4\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/reduce-energy-costs-and-water-consumption\/\" rel=\"bookmark\">Reduce Energy Costs and Water Consumption<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/reduce-energy-costs-and-water-consumption\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39348\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39348 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/04\/3-A-SSI-Authorized-components-for-Harsh-Conditions-Reducing-Water-and-Cleaning-Detergent-Usage-in-Hygienic-Production-700x450.png\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Authorized components for Harsh Conditions Reducing Water and Cleaning Detergent Usage in Hygienic Production\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-04-05T15:51:48+02:00\">5. 4\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/reduce-energy-consumption\/\" rel=\"bookmark\">Reduce Energy Consumption<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/reduce-energy-consumption\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39202\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39202 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/01\/Next-Generation-Stainless-Steel-Comparing-420-vs-440-Stainless-Steel-tubes-and-bars-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Next-Generation Stainless Steel Comparing 420 vs 440 Stainless Steel tubes and bars\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-30T14:21:23+02:00\">30. 3\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/aisi-440c-stainless-steel-vs-hardened-aisi-420\/\" rel=\"bookmark\">AISI 440C stainless steel vs hardened AISI 420<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/aisi-440c-stainless-steel-vs-hardened-aisi-420\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39049\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39049 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/02\/EHEDG-certificated-components.png-700x450.jpeg\" class=\"w-100 wp-post-image\" alt=\"3-A SSI authorized standard components\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:28:46+02:00\">22. 3\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/3-a-ssi-authorized-standard-sanitary-conveyor-components\/\" rel=\"bookmark\">3-A SSI Authorized Standard Sanitary Conveyor Components<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/3-a-ssi-authorized-standard-sanitary-conveyor-components\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39047\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39047 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/08\/NHK-5-700x450.png\" class=\"w-100 wp-post-image\" alt=\"3-A SSI Authorized Standard Components: Built for Hygienic Performance, Compliance, and Long-Term Trust\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:16:27+02:00\">22. 3\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/3-a-ssi-authorized-standard-components\/\" rel=\"bookmark\">3-A SSI Authorized Standard Components<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/3-a-ssi-authorized-standard-components\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-39043\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-39043 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2024\/08\/IP67-bearing-units--700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"3-A SSI composite bearing units\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-03-22T23:03:44+02:00\">22. 3\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/3-a-ssi-ip69k-block-bearing-units\/\" rel=\"bookmark\">3-A SSI IP69K Block Bearing Units<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/3-a-ssi-ip69k-block-bearing-units\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-37980\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-37980 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/01\/Pillow-Block-vs-Flange-Bearing-comparison-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Pillow Block vs Flange Bearing comparison\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-01-10T19:24:04+02:00\">10. 1\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/pillow-block-vs-flange-bearing-comparison\/\" rel=\"bookmark\">Pillow Block vs Flange Bearing Comparison<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/pillow-block-vs-flange-bearing-comparison\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-37961\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-37961 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2026\/01\/Pillow-block-vs-flange-bearing-explained-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Pillow block vs flange bearing explained\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2026-01-10T17:12:36+02:00\">10. 1\u6708 2026<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/pillow-block-vs-flange-bearing-explained\/\" rel=\"bookmark\">Pillow block vs flange bearing explained<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/pillow-block-vs-flange-bearing-explained\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-35848\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-35848 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/02\/Top-Quality-EHEDG-Certified-Components-Unmatched-Quality-and-Innovation-700x450.jpg\" class=\"w-100 wp-post-image\" alt=\"Top Quality EHEDG Certified Components Unmatched Quality and Innovation\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2025-10-17T09:57:17+02:00\">17. 10\u6708 2025<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/hygienic-design-of-equipment-in-food-processing-2\/\" rel=\"bookmark\">Hygienic Design of Equipment in Food Processing<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/hygienic-design-of-equipment-in-food-processing-2\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><div class=\"lqd-lp-column col-md-3 col-sm-6 food-processing-and-pharmaceutical-equipment lqd-f-1\"><article id=\"post-35536\" class=\"lqd-lp lqd-lp-style-3 pos-rel post-35536 post type-post status-publish format-standard has-post-thumbnail hentry category-food-processing-and-pharmaceutical-equipment tag-certified-components\"><div class=\"lqd-lp-img mb-5\"><figure class=\"pos-rel overflow-hidden border-radius-5\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"450\" src=\"https:\/\/nhkmachineryparts.com\/wp-content\/uploads\/2025\/09\/NHK-9-700x450.png\" class=\"w-100 wp-post-image\" alt=\"Components for packaging machinery\" \/><div class=\"lqd-overlay align-items-center justify-content-center\">\n\t\t\t<div class=\"lqd-overlay lqd-overlay-bg\"><\/div><!-- \/.lqd-overlay lqd-overlay-bg -->\n\t\t\t<i class=\"lqd-icn-ess icon-md-arrow-forward\"><\/i>\n\t\t<\/div><!-- \/.lqd-overlay align-items-center justify-content-center --><\/figure><\/div><header class=\"lqd-lp-header\">\n\t<div class=\"lqd-lp-meta lqd-lp-meta-dot-between d-flex flex-wrap align-items-center font-weight-bold text-uppercase ltr-sp-1\">\n\t\t\t\t<time class=\"lqd-lp-date pos-rel z-index-2\" datetime=\"2025-09-21T19:50:32+02:00\">21. 9\u6708 2025<\/time>\t<\/div>\n\t<h2 class=\"entry-title lqd-lp-title h5 mt-3 mb-0\"><a  href=\"https:\/\/nhkmachineryparts.com\/jp\/components-for-packaging-machinery\/\" rel=\"bookmark\">The True Cost of Downtime: Are Your Packaging Machine Components a Ticking Time Bomb?<\/a><\/h2><\/header>\n<a  href=\"https:\/\/nhkmachineryparts.com\/jp\/components-for-packaging-machinery\/\" class=\"lqd-lp-overlay-link lqd-overlay z-index-2\" tab-index=\"-1\"><\/a>\n<\/article><\/div><\/div><!--\/ .row --><\/div><!--\/ .lqd-lp-grid --><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"In the high-speed world of packaging, uptime is the ultimate currency. Every minute your line is stopped\u2014whether it's for a jam, a mechanical failure, or a cleaning cycle\u2014is a direct hit to your bottom line.\u00a0However, from our decades of experience at\u00a0NHK Group, we know that the root cause of most unscheduled downtime isn't the complex [...]","protected":false},"author":3,"featured_media":11212,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-food-processing-and-pharmaceutical-equipment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bearing Unit Engineering: The Role of 420 vs 440 Stainless Steel | NHK Machinery Parts<\/title>\n<meta name=\"description\" content=\"Engineering differences between 420 and 440 stainless steel bearing units. 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